A landfill leachate membrane concentration advanced treatment device and a treatment method thereof

Abstract

The application discloses a landfill leachate membrane concentration advanced treatment device and a treatment method thereof, and relates to the field of waste water treatment. The application provides a landfill leachate membrane concentration advanced treatment device and a treatment method thereof, after the membrane treatment of sewage, the advanced treatment of the activated carbon is entered, the relative stable flow rate can be kept in the treatment process, and then the effective adsorption of the activated carbon to the substances in the sewage is guaranteed, the regeneration work of the used activated carbon is carried out, and then the service life of the activated carbon is prolonged, the activated carbon in each activated carbon storage cavity is accurately cleaned, the adsorption capacity of the activated carbon in each activated carbon storage cavity is kept consistent, and then the sewage treatment effect is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of wastewater technology, and in particular to a membrane concentration and deep treatment device for landfill leachate and its treatment method. Background Technology

[0002] Membrane wastewater treatment refers to filtering water sources by selecting a membrane with a certain degree of permeability. This process is a physical filtration process. During the entire filtration process, particles smaller than the membrane pore size can still pass through the membrane pores and enter the filtered water source.

[0003] Meanwhile, since membrane filtration is a physical filtration process, the tiny organic matter and particulate matter in the wastewater are not filtered out and need to be further filtered, namely activated carbon filtration. Activated carbon can effectively remove residual chlorine, organic matter, odors and impurities from the water.

[0004] When using activated carbon, the water flow needs to maintain a certain speed. If the flow rate is too slow, the pores inside the activated carbon will become clogged, thus losing its filtering effect. If the flow rate is too fast, the water will not be filtered thoroughly, resulting in poor water quality. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a landfill leachate membrane concentration and deep treatment device and method.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a landfill leachate membrane concentration and deep treatment device, comprising a membrane treatment unit, an activated carbon treatment unit connected to the rear end of the membrane treatment unit, the activated carbon treatment unit comprising an upper inlet communicating with the membrane treatment unit and a carbon storage section storing activated carbon, the carbon storage section being located below the inlet, the carbon storage section being divided into multiple independent carbon storage chambers, the inlet being provided with an adjustment plate for adjusting the size of the inlet and a velocity measuring unit for detecting the water flow velocity, the treatment device including a control unit, the control unit controlling the size of the inlet according to the flow velocity measured by the velocity measuring unit, thereby maintaining the water flow velocity entering the carbon storage section within a set range, wherein when the adjustment plate adjusts the inlet, the corresponding carbon storage chamber is connected to the inlet.

[0007] Its beneficial effect is that after the wastewater undergoes membrane treatment, it enters the deep treatment process of activated carbon. During the treatment process, a relatively stable flow rate can be maintained, thereby ensuring the effective adsorption of substances in the wastewater by the activated carbon, thus improving the treatment efficiency and ensuring the effectiveness of wastewater treatment.

[0008] In the above scheme, preferably, the adjusting plate is rotatable, rotating in / out on one side of the inlet, and the speed measuring unit is located on the other side of the inlet.

[0009] In the above scheme, preferably, the activated carbon treatment unit further includes a mounting frame, the inlet is located on the mounting frame, the carbon storage part is a rotating cylinder, and multiple carbon storage chambers are evenly distributed inside the cylinder. The carbon storage part is rotatably mounted on the mounting frame.

[0010] In the above scheme, preferably, the mounting frame is provided with a power unit, which can drive the carbon storage section to rotate, thereby causing the carbon storage chamber on the carbon storage section to circulate into the area below the inlet.

[0011] In the above scheme, preferably, the mounting frame is provided with a drying unit, the drying unit includes a warm air pipe for conveying warm air, the warm air pipe is located above the carbon storage section, thereby performing low-temperature drying treatment on part of the activated carbon in the carbon storage chamber.

[0012] In the above scheme, preferably, the temperature of the air flowing out of the warm air duct is greater than 20 degrees Celsius and less than 180 degrees Celsius.

[0013] In the above scheme, preferably, the upper and lower ends of the carbon storage chamber are provided with perforated plates to prevent activated carbon from overflowing. The warm air pipe is located above the carbon storage chamber. An ash discharge port is also provided on the mounting frame at the lower end of the corresponding carbon storage chamber. A vibration device is provided on the ash discharge port to drive the perforated plate at the bottom of the carbon storage chamber to vibrate.

[0014] Its beneficial effect is that it regenerates the activated carbon after use, thereby extending the service life of the activated carbon.

[0015] In the above scheme, preferably, each carbon storage chamber is equipped with a water flow detector to record the time of water flow, the carbon storage section rotates at a constant speed, and the vibration device and the warm air pipe control the warm air flow rate and the vibration device frequency according to the time recorded by the water flow detector.

[0016] Its beneficial effect is that it precisely cleans the activated carbon in each carbon storage chamber, ensuring that the adsorption capacity of the activated carbon in each carbon storage chamber remains consistent, thereby ensuring the wastewater treatment effect.

[0017] In the above scheme, preferably, the vibration device is a vibrator, which can come into contact with the perforated plate when vibrating.

[0018] A treatment method using a landfill leachate membrane concentration and deep treatment device: S1: After the wastewater enters the membrane treatment unit, it is filtered through the membrane to remove particles larger than the membrane pores, and then flows into the activated carbon treatment unit for further treatment.

[0019] S2: Based on the water flow velocity measured by the velocity measuring unit located at the inlet, control the adjustment plate to rotate and adjust the size of the inlet so that the water flow velocity flowing into the activated carbon treatment unit is controlled within the set range, enabling the activated carbon to efficiently filter sewage.

[0020] S3: The carbon storage section continues to rotate, and the carbon storage chamber circulates into the area below the inlet. The drying unit dries the carbon storage chamber that has moved out of the inlet, thereby regenerating the activated carbon inside and extending its service life.

[0021] The beneficial effects of this invention are as follows: This invention provides a landfill leachate membrane concentration and deep treatment device and method. After the wastewater undergoes membrane treatment, it enters the activated carbon deep treatment process. During the treatment process, a relatively stable flow rate is maintained, thereby ensuring the effective adsorption of substances in the wastewater by the activated carbon. The activated carbon is regenerated after use, thereby extending its service life. At the same time, the activated carbon in each carbon storage chamber is precisely cleaned to ensure that the adsorption capacity of the activated carbon in each carbon storage chamber is consistent, thereby ensuring the wastewater treatment effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the present invention.

[0023] Figure 2 This is a top view of the adjustment plate of the present invention in its fully open state.

[0024] Figure 3 This is a cross-sectional view of the inlet location of the present invention.

[0025] Figure 4 This is a cross-sectional view showing the location of the drying unit in this invention.

[0026] Figure 5 This is a partial enlarged view of the interface location of the present invention.

[0027] Figure 6 This is a schematic diagram of the mounting plate of the present invention.

[0028] Figure 7 This is a schematic diagram of the carbon storage section of the present invention. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Example 1

[0030] See Figures 1-7 , A landfill leachate membrane concentration and deep treatment device includes a membrane treatment unit 1 and an activated carbon treatment unit 2. The membrane treatment unit 1 includes a sewage pipe 11, and a membrane module 12 is installed inside the sewage pipe 11. Sewage is introduced into the upper end of the sewage pipe 11, and after being filtered by the module 12, it flows out from the lower end of the sewage pipe 11. The module 12 filters out particles larger than the membrane pores.

[0031] The activated carbon treatment unit 2 includes a mounting frame 26, which is divided into an upper mounting plate 262 and a lower mounting plate 263. The upper mounting plate 262 has an inlet 21, which is connected to the lower end of the sewage pipe 11. The sewage filtered by the module 12 in the sewage pipe 11 is then introduced into the activated carbon treatment unit 2 through the inlet 21. A rotating cavity 211 is formed on the cross-section of the inlet 21. An adjusting plate 23 is rotatably arranged in the rotating cavity 211. The adjusting plate 23 can rotate and enter the inlet 21 from one end of the cross-section of the inlet 21, thereby adjusting the size of the inlet 21. By adjusting the diameter of the inlet 21, the flow rate of the sewage flowing out of the inlet 21 can be adjusted.

[0032] The activated carbon treatment unit 2 further includes a carbon storage section 22, a speed measuring unit 24, a drying unit 25, and a vibration device 27. The carbon storage section 22 is a circular ring barrel, and multiple carbon storage chambers 221 are evenly distributed on the circular ring barrel. Each carbon storage chamber 221 is independently isolated from each other. A mesh plate 222 is provided on the upper and lower end faces of the carbon storage chamber 221. Activated carbon is loaded in the carbon storage chamber 221. The upper and lower ends of the carbon storage section 22 are limited by the upper mounting plate 262 and the lower mounting plate 263, and it is rotatably mounted on the upper mounting plate 262 and the lower mounting plate 263. A power unit is provided on the mounting frame 26. The power unit can drive the carbon storage section 22 to rotate at a uniform speed on the mounting frame 26, so that the carbon storage chambers 221 at different positions of the ring circulate at a uniform speed below the inlet 21.

[0033] The function of the regulating plate 23 is to maintain the flow rate of sewage into the carbon storage chamber 221 below the inlet 21 within a set range. If the size of the carbon storage space below does not change, the initial velocity of sewage flowing into the carbon storage space from the inlet 21 will meet the requirements. However, the flow rate will slow down after entering the carbon storage space, which will cause the pores in the activated carbon to become blocked and lose the filtration effect. Therefore, when the regulating plate rotates, the number of carbon storage chambers 221 connected to the inlet 21 will also decrease accordingly, thereby reducing the flow rate of sewage into the carbon storage chamber 221 to meet the set requirements.

[0034] The carbon storage section 22 rotates clockwise, and the adjusting plate 23 rotates counterclockwise when the opening of the control inlet 21 decreases. The speed measuring unit 24 is set at the initial end of the inlet 21, so that when the inlet 21 decreases, the speed measuring unit 24 can always measure the flow rate of the sewage. Moreover, when the inlet 21 decreases, the carbon storage chamber 221 below the inlet 21 is always new, thus enabling the activated carbon to work efficiently and ensuring the deep treatment results of sewage.

[0035] In the initial state, the regulating plate 23 is in a semi-extended state, which in turn makes the inlet 21 half-open. When the sewage pressure and / or flow rate in the sewage pipe 11 decreases, the amount of sewage passing through the module 12 decreases, which in turn reduces the sewage flow rate through the inlet 21. As a result, the flow rate detected by the speed measuring unit 24 slows down. At this time, the hollow unit of the treatment device controls the regulating plate 23 to rotate counterclockwise, which reduces the opening of the inlet 21 and increases the flow rate of the sewage flowing out of the inlet 21, keeping it within the set range.

[0036] When the sewage pressure and / or flow rate in the sewage pipe 11 increases, the sewage flow through the module 12 increases, which in turn reduces the sewage flow through the inlet 21. As a result, the flow rate detected by the velocity measuring unit 24 increases. At this time, the hollow unit control adjustment plate 23 of the treatment device rotates clockwise, which increases the opening of the inlet 21, thereby slowing down the sewage flow rate from the inlet 21 and keeping it within the set range, thus ensuring that the activated carbon can work efficiently.

[0037] The mounting frame 26 is equipped with a drying unit 25, which includes a warm air pipe 251 for supplying warm air and a warm air cover 252. The upper mounting plate 262 has a drying hole, and the lower mounting plate 263 has an ash discharge port 261 corresponding to the drying hole. The warm air cover 252 covers the drying hole, and the warm air pipe 251 is connected to the warm air cover 252, so that the warm air can enter the carbon storage chamber 221 below the drying hole, flow through the carbon storage chamber 221 and then flow downward from the ash discharge port 261, thereby achieving the drying operation of the activated carbon in the carbon storage chamber 22. At the same time, since the activated carbon contains active substances, the drying temperature cannot be too high, so the drying temperature is maintained between 30℃ and 130℃.

[0038] The vibration device 27 is installed inside the ash collection hole 261. The vibration device 27 is an electric vibrator. When it is not vibrating, it does not contact the mesh plate 222. When the vibrator is energized, it vibrates and then touches the mesh plate 222, causing the mesh plate 222 to vibrate as well. This vibrates the activated carbon inside. Since drying is also being carried out at the same time, the vibration accelerates the outflow of moisture from the activated carbon, speeding up the drying process. At the same time, it causes the organic matter and impurities adsorbed on the activated carbon to fall downwards, thereby restoring a certain adsorption capacity to the activated carbon, thus regenerating the activated carbon and extending its service life.

[0039] Each carbon storage chamber 221 is equipped with a water flow detector to record the water flow time. The carbon storage section 22 rotates at a constant speed. When the carbon storage chamber 221 enters below the drying hole, the central control unit controls the vibration frequency of the vibration device 27 and the flow rate of the warm air pipe 251 according to the water flow time. The longer the water flow time, the faster the vibration frequency of the vibration device 27 and the faster the flow rate of the warm air in the warm air pipe 251. This allows for precise regeneration of the activated carbon in each carbon storage chamber 221, ensuring that the adsorption capacity of the carbon storage chamber 221 that subsequently enters the inlet 21 remains basically consistent.

[0040] Its working principle or usage method is as follows: Wastewater is introduced into the upper end of the water pipe 11, filtered by the module 12, and flows out from the lower end of the wastewater pipe 11. The module 12 filters out particles larger than the membrane pores. The filtered wastewater enters the activated carbon treatment unit 2 from the lower end of the wastewater pipe 11 for deep wastewater treatment.

[0041] Wastewater enters the carbon storage chamber 22, which rotates at a constant speed below, through the inlet 21. After being adsorbed by the activated carbon inside the carbon storage chamber 221, the wastewater is discharged from below, completing the deep treatment.

[0042] The activated carbon treatment unit 2 is also equipped with a drying unit 25 and a vibration device 27. Through the coordinated operation of the two, the activated carbon in the carbon storage chamber 221 can restore a certain adsorption capacity, enabling the activated carbon to undergo regeneration and extending its service life.

[0043] Since the water pressure and flow rate of the sewage flowing into the sewage pipe 11 will change, which will affect the adsorption capacity of the activated carbon, it is necessary to adjust the size of the inlet 21 and the number of the corresponding carbon storage chambers 221 below by adjusting the regulating plate 23, thereby controlling the flow rate of the sewage flowing into the corresponding carbon storage chambers 221.

[0044] Because of the change in the size of the inlet 21, the usage time of each carbon storage chamber 221 on the carbon storage section 22 will be different. The water flow time is recorded by the water flow detector. When the carbon storage chamber 221 moves to the area of ​​the drying unit 25 and the vibration device 27, the vibration frequency of the vibration device 27 and the flow rate of the hot air pipe 251 are changed to adjust the degree of cleaning of the activated carbon in the carbon storage chamber 221. The carbon storage chamber 221 with a long working time is cleaned with high intensity, and the carbon storage chamber 221 with a short working time is cleaned with low intensity. In this way, each carbon storage chamber 221 is restored to a basically consistent adsorption capacity, thereby improving the stability of the entire deep wastewater treatment. Example 2

[0045] See Figures 1-7 The difference between this embodiment and Example 1 lies in the operation of the carbon storage section 22, the drying unit 25, and the vibration device 27; the rest are the same.

[0046] The carbon storage section 22 rotates one or more carbon storage chambers 221 at set intervals, so that the carbon storage section 22 only rotates after a certain period of time, and is prohibited at other times, so that the activated carbon can perform adsorption better.

[0047] Simultaneously, after the carbon storage chamber 221 rotates by one or more angles, the drying unit 25 and the vibration device 27 begin to work. The central control unit controls the working time of the drying unit 25 and the vibration device 27 according to the water flow time on each carbon storage chamber 221, so that the working time of the drying unit 25 and the vibration device 27 is longer when the water flow time is longer, and the working time of the drying unit 25 and the vibration device 27 is shorter when the water flow time is shorter. After the working time is reached, the drying unit 25 and the vibration device 27 stop working.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A landfill leachate membrane concentration and deep treatment device, characterized in that: It includes a membrane treatment unit, and an activated carbon treatment unit is connected to the rear end of the membrane treatment unit; The activated carbon treatment unit includes an upper inlet connected to the membrane treatment unit and a carbon storage section containing activated carbon. The carbon storage section is located below the inlet and is divided into multiple independent carbon storage chambers. The inlet is equipped with an adjustment plate for adjusting the size of the inlet and a speed measuring unit for detecting the water flow rate. The processing device includes a control unit, which controls the size of the inlet according to the flow rate measured by the speed measuring unit, thereby maintaining the water flow rate entering the carbon storage section within a set range. When the regulating plate is adjusted at the inlet, it connects the corresponding carbon storage chamber to the inlet. Both the upper and lower ends of the carbon storage chamber are equipped with perforated plates to prevent activated carbon from overflowing. The hot air pipe is located above the carbon storage chamber. An ash discharge port is also provided on the mounting frame located below the corresponding carbon storage chamber. A vibration device is provided on the ash discharge port to drive the perforated plate at the bottom of the carbon storage chamber to vibrate. Each carbon storage chamber is equipped with a water flow detector to record the time it takes for water to pass through. The carbon storage section rotates at a constant speed. The vibration device and the warm air pipe control the warm air flow rate and the vibration device frequency according to the time recorded by the water flow detector. The longer the water flow time, the faster the vibration frequency of the vibration device and the faster the flow rate of the warm air in the warm air pipe, thus accurately regenerating the activated carbon in each carbon storage chamber, so that the adsorption capacity of the carbon storage chamber that is subsequently circulated into the inlet remains basically consistent.

2. The landfill leachate membrane concentration and deep treatment device according to claim 1, characterized in that: The adjustment plate is rotatable, rotating in and out on one side of the inlet, while the speed measuring unit is located on the other side of the inlet.

3. The landfill leachate membrane concentration and deep treatment device according to claim 1, characterized in that: The activated carbon treatment unit also includes a mounting frame, the inlet is located on the mounting frame, and the carbon storage part is a rotating cylinder with multiple carbon storage chambers evenly distributed inside the cylinder. The carbon storage part is rotatably mounted on the mounting frame.

4. The landfill leachate membrane concentration and deep treatment device according to claim 3, characterized in that: The mounting frame is equipped with a power unit that can drive the carbon storage section to rotate, thereby causing the carbon storage chamber on the carbon storage section to circulate into the area below the inlet.

5. The landfill leachate membrane concentration and deep treatment device according to claim 1, characterized in that: The mounting frame is equipped with a drying unit, which includes a warm air pipe for conveying warm air. The warm air pipe is located above the carbon storage section, thereby performing low-temperature drying treatment on a portion of the activated carbon in the carbon storage chamber.

6. The landfill leachate membrane concentration and deep treatment device according to claim 5, characterized in that: The temperature of the air flowing out of the heating duct is greater than 20 degrees Celsius and less than 180 degrees Celsius.

7. The landfill leachate membrane concentration and deep treatment device according to claim 1, characterized in that: The vibration device is a vibrator, which can come into contact with the perforated plate it passes through when it vibrates.

8. A treatment method using a landfill leachate membrane concentration and deep treatment device as described in claim 5, characterized in that: S1: After the wastewater enters the membrane treatment unit, it is filtered through the membrane to remove particles larger than the membrane pores, and then flows into the activated carbon treatment unit for further treatment. S2: Based on the water flow velocity measured by the velocity measuring unit located at the inlet, control the adjustment plate to rotate and adjust the size of the inlet so that the water flow velocity flowing into the activated carbon treatment unit is controlled within the set range, so that the activated carbon can efficiently filter sewage. S3: The carbon storage section continues to rotate, and the carbon storage chamber circulates into the area below the inlet. The drying unit dries the carbon storage chamber that has been removed from the inlet, thereby regenerating the internal activated carbon and extending its service life.

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